Water-cooling apparatus.



No. 822,996. PATENTEQ JUNE 12, 1906.

A. P. SMITH.

WATER COOLING APPARATUS.

APPLICATION FILED 153.24 1903.

MQZZeJUw' UNITED STATES PATENT OFFICE.

ARTHUR r. surrn, or srarscsisnn, tiAssAci-msnr'rs.

WATER-COOLING APPARATUS- Specification of Letters Patent.

Patented June 12, 1906.

Application filed February 24,1903. seen 1%. 1%,6'38.

., pecially applicable for use on automobiles for-cooling the water which is em loyed over 7 a ,d over again for maintaining t e cylinders o, thernotoif at a suitably low temperature.

lfhe object of the invention is to rovide a cooling apparatus of comparative y simple and cheap construction having a maximum of cooling-surface in a minimum of space and susceptible, by reason of its location at the front or other suitable part of the vehicle, of receiving therethrou h a constant flow of air as induced either by file motion of the vehicle or as induced by a mechanically-driven fan, or both, so that the warm water brought thereto to be cooled and to be conducted therefrom again to the motor will have the temperature thereof sufficiently lowered to accord with the desired conditions under which the motorcooling water is to be emplayed; and the invention consists in two 7 separate closed receptacles havln respectively, inlet and outlet passages lor water and a plurality of flattened tubes communicatin with and extending between the chem ers of said receptacles, which flattened tubes have in their lengths a plurality of crimpings or corrugations whereby increased. external cooling-surface is acquired; and the apparatus, moreover, comprises lon itudina ly-extending strips in each flattens tube, one in each tube, preferably between the ed es thereof, for preventing the sides of the tulle from, becoming entirely collapsed; and the invention furthermore consists in con structions and arrangements of the parts, all substantially as hereinafter fully described, and set forth in the claim.

In the drawings, accompanying and formingpart of this specification, Figure 1 is a front view of the apparatus, the upper and lower closed receptacles of which are shown in. vertical section. Fig. 2 is a vertical section on the line 2 2, Fig. 1. Fig. 3 is a per spective representation of a portion of the sage b. In .upper'receptacle and in the top wall of the length of one of the flattened tubes, of which in the apparatus a multi licity are combined. Similar characters 0 reference indicate corresponding parts in all of the views.

In the drawings, A represents the upper receptacle, havingtherethrou hthe inlet assage c, and B represents the ower close receptaclepfor which is provided an outletasthe bottom or lower wall 0 the lower receptacle are a plurality of transverse slets or apertures d, and extending from connection with upper and lower ones of these apertures are pairs of flattened tubes (3,:

the character of each tube being clearly understood on reference to Fig. 3, and each tube has by its u per and lower ends communication with t e respective receptacles. Each of the tubes 0 is formed of a single stri of sheet metal having a rcperly closed an secured lap-seam], as s own in Fig. 3, the flattening 'of the tube being along lines one of which is adjacent the seam, and While it is desired and intended to flatten the tube very much, so that the opposite walls thereof are located quite closely in relation to each other. Nevertheless, on the other hand, the walls of the tube should not in any place contact one with another, and as a measure to maintaining the walls of the tubes in their proper slight degree of separation one or more narrow and comparatively thin strips g are provided longitudinally of the tube-constitutin strip, so that when the tube is. complete these strips will have their dispositions therein substantially as shown.

- lhe crimpings or corru ations h of the tubes not only 1m )art in the length thereof increased extent 0 external cooling-surface, but in the series produce the approximately diamond'shaped air channels or ways j from front to rear through the apparatus.

In the assemblage and combination of the parts pairs of sinuous flattened tubes have the proximate ends thereof engaged in and through the slots in the respective receptaclewalls, the securing and rendering of the connections tight being acquired by solder or like substance.

A In practice it is advantageous to have the extremities of the tubes protrude inwardly beyond the inner faces of the slotted walls of the receptacles, so as to allow alayer or thickness of solder to be [lowed by the protruding end portions of the tubes and to fill and pack in the slots and yet without liability ofclogging or stop ing up the ends of the flattened tubes, whic of course are understood as open to communication with the receptacle- 0 ainbers.

The upper receptaclehas thewater-supply opening i, for which a cap or plug m is provided.

The upper and lower receptacles constitute the corresponding border members of a rectangular frame of which the parallel vertical metallic uprights G are the connecting members, supporting the upper 1eceptaclefron1 the lower one.

This ap lliltUS is to be mounted on the front or ot ier suitable part of an automobile and to have by the conduit a pipe connection whereby the heated water to be cooled may be pumped into the upper receptacle, and the water ravita tes from the upper receptacle throng 1 the series of flattened corrugated tubes into the lower receptacle, being thence conveyed back to the engine-cooling chamber of the motor.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is

A cooling apparatus, embodying a pair ofshaped openings therebetween, said tubes being arrangedln pairs, the ends of each air of said tubes pro ecting through said s ots and beyond the outer face of said inner walls of thereceptacles, and solder engaging about said projecting ends of said pairs of tubes and seating on the outer faces of said inner walls of the rece tacles.

Signed liiy me at Springfield, Massachusetts, in presence of two subscribing witnessesi ARTHUR P. SMITH. Witnesses:

A. V. LEAHY, WM S. BELLOWS. 

